These easy to add and remover "Push/Pull" Dust Hoods come standard with all our CNC machines. These are for sale as replacements to your original dust hood. The easy plastic collar is placed around the spindle and the dust hood slides over the collar and tightens down with the installed allen. You Push and Pull this dust hood on and off without loosining or removing the allen screw. All these hoods come with extra long and extra thick nylon bristles. Cut and thin the bristles to fit your cutting bit lenghts and material preferences. Extremely user friendly and a great dust hood for all these machines.